Why are carbon dioxide concentrations expected to increase? A. Carbon dioxide concentrations are expected to increase because fossil fuel burning is expected to increase.
B. Carbon dioxide concentrations are expected to increase because of an increase in agriculture.
C. Carbon dioxide concentrations are expected to increase because more land will have to be cleared for increasing populations and agricultural use.
D. All of the above
The correct answer is D. All of the above.
Each option highlights a significant factor contributing to the increase in carbon dioxide concentrations:
– A discusses the expected rise in fossil fuel consumption, which releases CO2 when burned.
– B points to agriculture, as certain practices can lead to increased emissions.
– C mentions land clearing, which reduces carbon sinks (like forests) and releases stored carbon.
Together, these factors indicate a comprehensive understanding of why CO2 levels are projected to rise. If you have more questions or need further explanation, feel free to ask!